"There's nothing that says you have to be happy all the time."

The integration of digital technology will revolutionize traditional coal mining.

农业现代化不是简单的机械化，而是要让农民真正掌握科技，用智慧种地。

The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.

Every image embodies a way of seeing.

Diversity in thought leads to better solutions.

只为三个国家制造不值得我花费时间；但为全世界制造则非常值得。

The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.

There are still many causes worth sacrificing for, so much history yet to be made.

译文：从深山里开采出来，经过千锤百炼，烈火焚烧也毫不在乎。就算粉身碎骨也不怕，只为在世上留下清白的名声。